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CX2SA > SATDIG 16.10.09 21:17l 264 Lines 8896 Bytes #999 (0) @ WW
BID : AMSATBB4546
Read: GUEST
Subj: AMSAT-BB-digest V4 546
Path: IZ3LSV<IK2XDE<PY1AYH<PY1AYH<CX2SA
Sent: 091016/1912Z @:CX2SA.LAV.URY.SA #:10025 [Minas] FBB7.00e $:AMSATBB4546
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: What Are Others Using (George Henry)
2. Re: OT: USB - RS-232 Adapter (Jim Jerzycke)
3. Re: OT: USB - RS-232 Adapter (Nigel Gunn G8IFF/W8IFF)
4. AO-51 for November (John Marranca, Jr)
5. Why do hamsats? (Or anything else...) (Mark VandeWettering)
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Message: 1
Date: Fri, 16 Oct 2009 13:06:59 -0500
From: "George Henry" <ka3hsw@xxx.xxx>
Subject: [amsat-bb] Re: What Are Others Using
To: "amsat bb" <amsat-bb@xxxxx.xxx>
Message-ID: <15DDB817E5004DBD8DDF85F1783A4E3B@xxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Agreed. I use SatPC32 with a 910H on the linear sats and it works great.
As Elan said, you must do a little tweaking due to variations between
different radios and satellite oscillator aging, but once you've saved the
correction for a given bird, you'll be spot on after that.
George, KA3HSW
----- Original Message -----
From: "Elan Portnoy" <elanportnoy@xxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Thursday, October 15, 2009 7:18 PM
Subject: [amsat-bb] Re: What Are Others Using
SatPC32 works great on the linear birds. Takes a little tuning to get on the
right freq, but works nicely after setup.
------------------------------
Message: 2
Date: Fri, 16 Oct 2009 11:07:32 -0700 (PDT)
From: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
Subject: [amsat-bb] Re: OT: USB - RS-232 Adapter
To: "AMSAT-BB@xxxxx.xxxx <amsat-bb@xxxxx.xxx>, FT897@xxxxxxxxxxx.xxxx
Josh Smith <juicewvu@xxxxx.xxx>
Message-ID: <72241.92645.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
I prefer Keyspan. They make single-port, and multiple-port units that work
perfectly with Linux.
73, Jim
--- On Fri, 10/16/09, Josh Smith <juicewvu@xxxxx.xxx> wrote:
> From: Josh Smith <juicewvu@xxxxx.xxx>
> Subject: [amsat-bb] OT: USB - RS-232 Adapter
> To: "AMSAT-BB@xxxxx.xxxx <amsat-bb@xxxxx.xxx>, FT897@xxxxxxxxxxx.xxx
> Date: Friday, October 16, 2009, 10:53 AM
> Everyone,
> I know this is slightly (mostly??) off topic but I am in
> the market
> for a USB to RS-232 adapter for use with my radios (ft-897d
> and
> th-d7ag).? My main requirement be that it works with
> Linux.? Can any
> of you make a recommendation?
>
>
> Thanks,
> Josh Smith
> KD8HRX
> email/jabber:? juicewvu@xxxxx.xxx
> phone:? 304.237.9369(c)
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx.
> Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur
> satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 3
Date: Fri, 16 Oct 2009 18:24:17 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: OT: USB - RS-232 Adapter
To: Josh Smith <juicewvu@xxxxx.xxx>
Cc: FT897@xxxxxxxxxxx.xxxx "AMSAT-BB@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Message-ID: <4AD8BA51.8020609@xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8; format=flowed
Anything that uses the FTDI chip.
Josh Smith wrote:
> Everyone,
> I know this is slightly (mostly??) off topic but I am in the market
> for a USB to RS-232 adapter for use with my radios (ft-897d and
> th-d7ag). My main requirement be that it works with Linux. Can any
> of you make a recommendation?
>
>
> Thanks,
> Josh Smith
> KD8HRX
> email/jabber: juicewvu@xxxxx.xxx
> phone: 304.237.9369(c)
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
>
> ------------------------------------------------------------------------
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.421 / Virus Database: 270.14.20/2440 - Release Date: 10/16/09
06:32:00
>
--
Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH 45385-1115, USA. tel +1 937
825 5032
Amateur Radio G8IFF W8IFF (was KC8NHF), e-mail nigel@xxxxx.xxx www
http://www.ngunn.net
Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pigs QRP
Club International #385,
Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK 0182, MKARS, ALC,
GCARES, XWARN.
------------------------------
Message: 4
Date: Fri, 16 Oct 2009 14:52:50 -0400
From: "John Marranca, Jr" <KB2HSH@xxxxx.xxx>
Subject: [amsat-bb] AO-51 for November
To: amsat-bb <amsat-bb@xxxxx.xxx>
Message-ID:
<8edcdb130910161152u6986f220ldcccd3290d179709@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Drew, et al:
Any possibility of having SSTV on the 2nd channel for November?
Thanks!
John KB2HSH
--composed with Windows 7 Ultimate
_______________________________
John Marranca, Jr
-PBX Technician-
BN Systems, Incorporated
Orchard Park, NY
(716)406-7130
------------------------------
Message: 5
Date: Fri, 16 Oct 2009 11:55:06 -0700
From: Mark VandeWettering <kf6kyi@xxxxx.xxx>
Subject: [amsat-bb] Why do hamsats? (Or anything else...)
To: amsat-bb@xxxxx.xxx
Message-ID:
<d8eb7a910910161155j3436e036i7ea7937624716875@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
I'll limit my comments to two issues:
> Ham radio is about communicating. If we want to turn its primary task into
> "education" then it will look very very different.
Part 97.1 tells us what the intended (not always realized, it must be
said) purpose of amateur radio is. it certainly is intended to be a
communication service, but the regulations also recognize the
importance of education in Part 97.1(c):
(c) Encouragement and improvement of the amateur service through rules
which provide for advancing skills in both the communications and
technical phases of the art.
Education (particularly self-education) has always been a principle of
amateur radio. Indeed, from 97.3(a)(4), the definition of amateur
service:
(4) Amateur service. A radiocommunication service for the purpose of
self-training, intercommunication and technical investigations carried
out by amateurs, that is, duly authorized persons interested in radio
technique solely with a personal aim and without pecuniary interest.
It does list "intercommunication", but it also lists "self-training"
and "technical investigations", which certainly have a clear
educational mandate. I admit that most hams don't seem to take this
educational mandate very seriously, but it is there, and I applaud
AMSAT in their educational efforts. In the grand scheme of things, I
think having school kids talk to astronauts in orbit probably does
more social good than allowing hams work DX.
Secondly, regarding the chances of success of ARISS-Sat-1, first, I
hope you are wrong. I hope it is successful, and that the SDX
transponder provides some unique opportunities for radio amateurs.
As to whether flying such a payload is a reasonable use of this rare
launch opportunity, I think it clearly is. Yes, we could kick a very
basic linear transponder out of the ISS, and it would float around in
LEO and allow you to make some contacts, but so what? What purpose
would be served? To get to _affordable_ amateur satellites, we have
to find a way to actually pay for launches. This means (among other
things) limiting mass, and that means relying on the benefits that
digital control can in controlling and minimizing power consumption.
You can't just run a bent pipe transponder on a 1U cubesat and expect
anything useful to develop. We need to think
Robert also mentioned the decreasing satellite population. It isn't
decreasing because satellites are becoming more expensive: indeed, as
Bob Bruninga has pointed out, the actual hardware costs of satellites
have fallen dramatically. The problem is that we can't get people to
donate free launches to get our stuff into orbit. AO-10 had a mass
of about 90kg. Arianspace wants 1.8 million euros to launch that
into HEO orbit. The cost of the development and construction of the
satellite is just the smallest fraction of that cost. To make
satellite launches affordable, we need to figure out new ways to
shrink the mass, provide careful power control, and either accept
lower orbits or figure out new ways to boost satellites to higher
orbits (I find the micropropulsion work to be very interesting).
It's a pity we can't harness the power of complaining to boost things
to orbit...
73 Mark K6HX
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 4, Issue 546
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